The phrase "additional luggage" is correct and usable in written English.
It can be used when referring to extra bags or items that a traveler wishes to bring beyond the standard allowance.
Example: "Please note that there will be an extra charge for any additional luggage you bring on the flight."
Alternatives: "extra baggage" or "supplementary luggage".
The front seats were exceptionally comfortable, and the second row moves back and forth for either extra legroom or additional luggage space.
"But we've had people delivering bicycles and skis and checking additional luggage, and people were spending such a big price it made sense.
Outfitted in nearly indestructible ballistic nylon, the brand's Regent bag features a removable garment sleeve, interior pockets and a strap for additional luggage to be attached.
You can purchase additional luggage coverage by paying the airlines an added fee for a higher value for your luggage when you check in.
In some cases, you can bring up to 100 lbs of luggage with you, and additional luggage can be checked at a reasonable price.
Extra luggage is not fun!
The pod-like "Lactation Station" (it looks a bit like a little egg-shaped spaceship) is a freestanding kiosk with seating, a fold-down table and a power-supply to plug a pump or an entertainment device into — all this with additional space for luggage or a stroller.
"The flight attendants are usually nice enough to hang it in the front of the cabin, it doesn't suffer any packing abuse and it doesn't count as an additional piece of luggage".
In the late 2000s BART began modifying some of the C2 cars to test features such as hand-straps and additional areas for luggage, wheelchairs and bicycles.
Read through all ticket information, including possible additional fees for luggage, seat location, meals, etc. Book hotels or hostels in advance.
This creates additional security pressures with luggage piling up in the baggage hall".
